A client who is receiving an IV infusion of heparin sodium 25,000 units in 5% dextrose injection 500 mL at 1,000 units/hour has a partial thromboplastin time (PTT) of 10 seconds. The sliding scale prescription reads, "If the PTT is less than 65 seconds, increase the rate by 200 units/hour; and if the PTT is greater than 95 seconds, decrease the rate by 200 units/hour." The nurse should regulate the infusion pump for how many mL/hour?
(Enter numerical value only.)
The Correct Answer is ["24"]
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (units/h) x Volume (mL) / Concentration (units)
First, we need to adjust the dose according to the sliding scale prescription based on the PTT result. In this case, since the PTT is less than 65 seconds, we need to increase the dose by 200 units/hour. Therefore, the new dose is 1,000 units/hour + 200 units/hour = 1,200 units/hour.
Plugging in the given values, we get:
Infusion rate (mL/h) = 1,200 units/h x 500 mL / 25,000 units
Simplifying, we get:
Infusion rate (mL/h) = 24 mL/h
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["17"]
Explanation
To calculate the infusion rate, we need to use the formula:
Infusion rate (mL/h) = Dose (mg/min) x Volume (mL) / Concentration (mg)
Plugging in the given values, we get:
Infusion rate (mL/h) = 0.5 mg/min x 200 mL / 360 mg
Simplifying, we get:
Infusion rate (mL/h) = 100 mL / 360 min
Converting minutes to hours, we get:
Infusion rate (mL/h) = 100 mL / 6 h
Dividing both sides by 6, we get:
Infusion rate (mL/h) = 16.67 mL/h
Rounding to the nearest whole number, we get:
Infusion rate (mL/h) = 17 mL/h
Correct Answer is ["0.5"]
Explanation
To calculate the volume of heparin solution, we need to use the formula:
Volume (mL) = Dose (units) / Concentration (units/mL)
Plugging in the given values, we get:
Volume (mL) = 5,000 units / 10,000 units/mL
Simplifying, we get:
Volume (mL) = 0.5 mL
Rounding to the nearest tenth, we get:
Volume (mL) = 0.5 mL
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.